OMG I THOUGHT I WAS THE ONLY ONE.
Mirror of Fate is the whole reason I'm still on board with the LoS series, it did pretty much everything I was hoping for and more for the new canon lore. It established the Belmont clan, gave us Dracula, but ultimately I finally had a portable Castlevania game on my 3DS. That's really the one thing I wanted more than any other game for my 3DS was a new Castlevania.
Plus it gave us some amazing designs for the Belmonts, ones I might like more than the original canon's designs. I will never stop praising Mercury Steam's artists.
The jumping was super clunky and some bosses were kinda w/e, but it was a much better game than I thought it would be.